Union check-valve.



H. H. GR

UNION G APPLICATION HECK VALVE.

FILED ooT.11, 1909 Patented Aug. 16,1910.

INVENTOR r M N 1,

L I I I l ATrokNEv.

'UNITED ,STATES Pirrinvtl OFFICE.

HARRY II.GrROH, 0F MONOCACY, PENNSYLVANIA, .ASSIGiNOR OF ONE-HALF T0JAMES R. KLINE, `OIE MONOCACY, PENNSYLVANIA.

UNION CHECK-VALVE.

Specification of Letters Patent.

Patentedaug. 1o, 191e.

To all whom 'it may concern: Be it known that I, HARRY H. GROH, citizenof the-United States. residing at Monocacy, inthe county of Berks andState of enn syl-Vania.

and useful Improvements in Union Check- 'Valves, of which the followingis a specification.

This invention relates' to an improvement in union check `valves and theobject of my present invention is to. produce a union litting in theform of a check valve, and of such simple construction that` its costwill be 'materially reduced.`

A further object in the present instance has been to condense thenecessary features of a device of this class in as compact a body aspossible and one that can be easily and rapidly disconnected. '.20

The invention is more fully described in thiollowmg speciiicatlon andclearly illustrated m the accompanying drawing. 1n

which l Figure l is a central sectional view device and Fig. 2 is asectional view through line2-2 of Fig. l.

The munerals l and 2 designate the two members of the fitting, that is,the members to be joined. The member l is 'provided with a valve?) whichis adapted to close on a valve-seat -l formed on the inside of themember.

The numeral 5 designates the valve stem of my taken guide. This guide isin the form of a disky and is arranged to tit snugly in the inside ofthe greater diameter ot' thc member 1. and i it has a centralperforation and a number of openings between this perforatiol'l and theouter rim. through which the liquid may pass. This central vperforationserves as a guide for the valve stem El, secured to the va-lvc 3, andtendsto keep the valve in proper alinement for accurate seating.

The numeral Sdesignates a washer, located between the meeting faces ofthe members l and and of su'lticieut width t0 hold have invented certainnew member 2 and its ting in the form tracted ends, tha-tais, at theends opposite their meeting faces, `for the purposes of making the usualconnections, and the mem- `ber l is also screw'threaded externally atits enlarged or meeting end.

A clamping sleeve 10 ts loosely over the contracted opening l1 is lessin diameter than the greater diameter of the member 2,so that it cannotpassentirely over said member. The sleeve l0 is screw-threadedinternallyand is adapted to engage the screw Athreads on the enlargedend of the member l, whereby the two members may be drawn toward eachother, by the turning of the sleeve l07 thus forming a. titof a unioncheck valve. The guide disk 5 is iformed with a lug 5a on one side and acoiled spring 16 surrounds this lug and also the valve stem, and restsbetween kthe valve and the disk in contracted position, thus tending tokeep the Valve seated at all times.

Having thus fully described my invention, what I claim anddesire tosecure by Letters Patent is A. union check valve, comprising twocoupling members, a Valve arranged within one of said members, said lastmentioned coupling member being' provided in one-of its ends with asocket, a Valve stem guide seated therein, the outer face of the saidvalve stem guide and corresponding face or edge ot' the `said couplingmember being flush, and a packing ring arranged between said couplingmembers and overlapping said valve stem guide to hold the latter firmlyseated in said socket.

-In testimony whereof I atlixgmy signature, in presence of ytwowitnesses.

4 HARRY H. GROH.

IVitnesses En. A. KELLY, M. C. KREIDER.

